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TPS2220B Datasheet

  • TPS2220B

  • 单 PC 卡串行接口电源开关

  • 351.16KB

  • 29页

  • TI

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TPS2220B
www.ti.com
SLVS554 鈥?JANUARY 2005
POWER-INTERFACE SWITCHES
FOR SERIAL PCMCIA CONTROLLERS
FEATURES
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Single-Slot Switch: TPS2220B
Fast Current Limit Response Time
Fully Integrated VCC and VPP Switching for
3.3 V, 5 V, and 12 V
Meets Current PC Card鈩?Standards
V
pp
Output Selection Independent of V
CC
12-V and 5-V Supplies Can Be Disabled
TTL-Logic Compatible Inputs
Short-Circuit and Thermal Protection
24-Pin HTSSOP and 24-Pin SSOP
140-碌A (Typical) Quiescent Current from
3.3-V Input
Break-Before-Make Switching
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Power-On Reset
-40掳C to 85掳C Operating Ambient Temperature
Range
APPLICATIONS
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Notebook and Desktop Computers
Bar Code Scanners
Digital Cameras
Set-Top Boxes
PDAs
DESCRIPTION
The TPS2220B power-interface switch provides an integrated power-management solution for single Card
sockets. The device allows the controlled distribution of 3.3 V, 5 V, and 12 V to one card slot. The current-limiting
and thermal-protection features eliminate the need for fuses. Current-limit reporting helps the user isolate a
system fault. The switch r
DS(on)
and current-limit values have been set for the peak and average current
requirements stated in the PC Card specification, and optimized for cost.
Like the TPS2220A this device supports independent VPP/VCC switching. The TPS2220B is pin compatible with
the TPA2220A execept for pin 20 of the TPS2220B which has no connection.
AVAILABLE OPTIONS
PACKAGED DEVICE
T
A
PLASTIC SMALL OUTLINE
(DB-24)
(1)
TPS2220BDB
PowerPAD鈩?/div>
PLASTIC SMALL OUTLINE
(PWP-24)
(1)
TPS2220BPWP
-40掳C to 85掳C
(1)
The DB and PWP packages are also available taped and reeled. Add R suffix to device type (e.g., TPS2220BPWPR) for taped and
reeled.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PC Card is a trademark of PCMCIA (Personal Computer Memory Card International Association).
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2005, Texas Instruments Incorporated

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